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-- C35505F.ADA

--                             Grant of Unlimited Rights

--

--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,

--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 

--     unlimited rights in the software and documentation contained herein.

--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 

--     this public release, the Government intends to confer upon all 

--     recipients unlimited rights  equal to those held by the Government.  

--     These rights include rights to use, duplicate, release or disclose the 

--     released technical data and computer software in whole or in part, in 

--     any manner and for any purpose whatsoever, and to have or permit others 

--     to do so.

--

--                                    DISCLAIMER

--

--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR

--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 

--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE

--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 

--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A

--     PARTICULAR PURPOSE OF SAID MATERIAL.

--*

-- OBJECTIVE:

--     CHECK THAT CONSTRAINT ERROR IS RAISED BY THE ATTRIBUTES

--     'PRED' AND 'SUCC' WHEN THE PREFIX IS A CHARACTER TYPE

--     AND THE RESULT IS OUTSIDE OF THE BASE TYPE.

-- HISTORY:

--     JET 08/18/87  CREATED ORIGINAL TEST.

WITH REPORT; USE REPORT;

PROCEDURE  C35505F  IS

     TYPE CHAR IS ('A', B);

     TYPE NEWCHAR IS NEW CHAR;

     FUNCTION IDENT (CH : CHAR) RETURN CHAR IS

     BEGIN

          RETURN CHAR'VAL (IDENT_INT (CHAR'POS (CH)));

     END;

     FUNCTION IDENT (CH : NEWCHAR) RETURN NEWCHAR IS

     BEGIN

          RETURN NEWCHAR'VAL (IDENT_INT (NEWCHAR'POS (CH)));

     END;

BEGIN

     TEST( "C35505F" , "CHECK THAT CONSTRAINT ERROR IS RAISED BY " &

                       "THE ATTRIBUTES 'PRED' AND 'SUCC' WHEN THE " &

                       "PREFIX IS A CHARACTER TYPE AND THE RESULT " &

                       "IS OUTSIDE OF THE BASE TYPE" );

     BEGIN

          IF CHAR'PRED (IDENT ('A')) = 'A' THEN

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR CHAR'PRED (IDENT ('A')) - 1" );

          ELSE

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR CHAR'PRED (IDENT ('A')) - 2" );

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED " &

                        "FOR CHAR'PRED (IDENT ('A'))" );

     END;

     BEGIN

          IF CHAR'SUCC (IDENT (B)) = B THEN

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR CHAR'SUCC (IDENT (B)) - 1" );

          ELSE

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR CHAR'SUCC (IDENT (B)) - 2" );

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED " &

                        "FOR CHAR'SUCC (IDENT (B))" );

     END;

     BEGIN

          IF NEWCHAR'PRED (IDENT ('A')) = 'A' THEN

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR NEWCHAR'PRED (IDENT ('A')) - 1" );

          ELSE

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR NEWCHAR'PRED (IDENT ('A')) - 2" );

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED " &

                        "FOR NEWCHAR'PRED (IDENT ('A'))" );

     END;

     BEGIN

          IF NEWCHAR'SUCC (IDENT (B)) = 'A' THEN

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR NEWCHAR'SUCC (IDENT (B)) - 1" );

          ELSE

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR NEWCHAR'SUCC (IDENT (B)) - 2" );

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED " &

                        "FOR NEWCHAR'SUCC (IDENT (B))" );

     END;

     BEGIN

          IF CHARACTER'PRED (IDENT_CHAR (CHARACTER'BASE'FIRST)) = 'A'

             THEN

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR CHARACTER'PRED " &

                        "(IDENT_CHAR (CHARACTER'BASE'FIRST)) - 1" );

          ELSE

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR CHARACTER'PRED " &

                        "(IDENT_CHAR (CHARACTER'BASE'FIRST)) - 2" );

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED " &

                        "FOR CHARACTER'PRED " &

                        "(IDENT_CHAR (CHARACTER'BASE'FIRST))" );

     END;

     BEGIN

          IF CHARACTER'SUCC (IDENT_CHAR (CHARACTER'BASE'LAST)) = 'Z'

             THEN

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR CHARACTER'SUCC " &

                        "(IDENT_CHAR (CHARACTER'BASE'LAST)) - 1" );

          ELSE

               FAILED ( "NO EXCEPTION RAISED " &

                        "FOR CHARACTER'SUCC " &

                        "(IDENT_CHAR (CHARACTER'BASE'LAST)) - 2" );

          END IF;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               NULL;

          WHEN OTHERS =>

               FAILED ( "WRONG EXCEPTION RAISED " &

                        "FOR CHARACTER'SUCC " &

                        "(IDENT_CHAR (CHARACTER'BASE'LAST))" );

     END;

     RESULT;

END C35505F;